Just ahead of U.S. sanctions on Iran set to snap back on Monday targeting primarily the energy, shipbuilding, shipping, and banking sectors, Iran’s most prominent conservative cleric has announced that if oil exports are halted, Saudi tankers will be confiscated and Gulf countries attacked.

Powerful Shia cleric Ayatollah Ahmad Alamolhoda is the Friday Prayer leader in Mashhad, considered Iran’s spiritual capital and among the holiest places in Shia Islam, and sits on the government’s “Assembly of Experts” but has no formal government role or decision-making ability. However, he’s a powerful leader and chief spiritual force behind Iran’s conservative faction who has long been at odds with President Hassan Rouhani.

If we reach a point that our oil is not exported, the Strait of Hormuz will be mined. Saudi oil tankers will be seized and regional countries will be leveled with Iranian missiles.

Prominent hardline cleric Ahmad Alamolhoda

The cleric is further reported to have declared that Iran has the power to “instantly” create conditions for $400 a barrel oil prices if it decides to act in the Persian Gulf.

He said as reported in regional opposition media:

If Iran decides, a single drop of this region’s oil will not be exported and in 90 minutes all Persian Gulf countries will be destroyed. The UAE and Saudi Arabia will be destroyed in 60 minutes. After 90 minutes the U.S. will have nothing in this country. And we haven’t even started with Israel. Beware of the day we go after Israel, too. That’s why they want us to round up our missiles.